Update cibuildwheel configuration

Author: MorningFrog

cibuildwheel_scripts/before-all.linux.bash

@@ -25,7 +25,8 @@ fi
 
 # Bootstrap the installation
 cd "$VCPKG_ROOT"
-./bootstrap-vcpkg.sh -disableMetrics
+env -u CMAKE_TOOLCHAIN_FILE -u CMAKE_PREFIX_PATH -u CMAKE_MODULE_PATH \
+  ./bootstrap-vcpkg.sh -disableMetrics
 
 echo "set(VCPKG_BUILD_TYPE release)" | tee -a triplets/${VCPKG_DEFAULT_TRIPLET:-x64-linux}.cmake
 

cibuildwheel_scripts/before-all.windows.ps1

@@ -6,7 +6,22 @@ $env:VCPKG_ROOT = "C:\vcpkg"
 if (-not (Test-Path $env:VCPKG_ROOT)) {
   git clone https://github.com/microsoft/vcpkg.git $env:VCPKG_ROOT
 }
+
+# Clear and backup existing CMake environment variables
+$backupVars = @{}
+foreach ($var in @("CMAKE_TOOLCHAIN_FILE", "CMAKE_PREFIX_PATH", "CMAKE_MODULE_PATH")) {
+    if (Test-Path "Env:$var") {
+        $backupVars[$var] = (Get-Item "Env:$var").Value
+        Remove-Item "Env:$var"
+    }
+}
+
 & "$env:VCPKG_ROOT\bootstrap-vcpkg.bat" -disableMetrics | Out-Host
 
+# Restore backed up CMake environment variables
+foreach ($kv in $backupVars.GetEnumerator()) {
+    Set-Item "Env:$($kv.Key)" $kv.Value
+}
+
 # install eigen3
-& "$env:VCPKG_ROOT\vcpkg" install "Eigen3:x64-windows"
+& "$env:VCPKG_ROOT\vcpkg" install "Eigen3:$env:VCPKG_TARGET_TRIPLET"

install_scripts/install_vcpkg.ubuntu.bash

@@ -23,9 +23,6 @@ fi
 cd "$INSTALL_DIR"
 ./bootstrap-vcpkg.sh -disableMetrics
 
-# Set default to install release version of libraries
-echo "set(VCPKG_BUILD_TYPE release)" | tee -a triplets/x64-linux.cmake
-
 # Add line if missing function
 add_line_if_missing () {
   local line="$1"

pyproject.toml

@@ -59,6 +59,6 @@ before-all = "powershell -ExecutionPolicy Bypass -File cibuildwheel_scripts/befo
 archs = ["AMD64"]
 
 [tool.cibuildwheel.windows.environment]
-VCPKG_ROOT = "C:\\vcpkg"
+VCPKG_ROOT = "C:/vcpkg"
 VCPKG_TARGET_TRIPLET = "x64-windows"
-CMAKE_TOOLCHAIN_FILE = "C:\\vcpkg\\scripts\\buildsystems\\vcpkg.cmake"
+CMAKE_TOOLCHAIN_FILE = "C:/vcpkg/scripts/buildsystems/vcpkg.cmake"